Finding the Fourth Proportional to 5,214.56, 7,196.04 and 2,856.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,214.56 : 7,196.04 = 2,856.69 : x
2. Step 2: Convert to fraction form
   5,214.56/7,196.04 = 2,856.69/x
3. Step 3: Cross multiply
   5,214.56x = 7,196.04 × 2,856.69
4. Step 4: Simplify right side
   5,214.56x = 20,556,855.51
5. Step 5: Solve for x
   x = 20,556,855.51/5,214.56
6. Step 6: Final answer
   x = 3,942.20